LEADER 02526oam 2200481zu 450 001 9910138912803321 005 20241212215835.0 010 $a9781509070190 010 $a1509070192 010 $a9780769537818 010 $a0769537812 035 $a(CKB)2400000000003102 035 $a(SSID)ssj0000452884 035 $a(PQKBManifestationID)12166177 035 $a(PQKBTitleCode)TC0000452884 035 $a(PQKBWorkID)10472562 035 $a(PQKB)10456853 035 $a(NjHacI)992400000000003102 035 $a(EXLCZ)992400000000003102 100 $a20160829d2009 uy 101 0 $aeng 135 $aur||||||||||| 181 $ctxt 182 $cc 183 $acr 200 10$a2009 6th International Symposium on Voronoi Diagrams 210 31$a[Place of publication not identified]$cIEEE$d2009 215 $a1 online resource 300 $aBibliographic Level Mode of Issuance: Monograph 311 08$a9781424447695 311 08$a1424447690 330 $aIn this paper, we show a graph isomorphism between a dual graph of the Delaunay graph of the sampled points and the medial axis of the sampled features. This dual graph captures the fact that two Delaunay triangles share two vertices or an edge. Then, we apply it to the computation of the medial axis of the features selected in an image. The computation of the medial axis of images is of interest in applications such as mapping, climatology, change detection, medicine, etc. This research work provides a way to automate the computation of the medial axis transform of the features of color 2D images. In color images, various features can be distinguished based on their color. The features are thus extracted as object borders, which are sampled in order to compute the medial axis transform. We present also a prototype application for the completely automated or semi-automated processing of (satellite) imagery and scanned maps. Applications include coastline extraction, extraction of fields, clear cuts, clouds, as well as heating or pollution monitoring and dense forest mapping among others. 606 $aEngineering mathematics$vCongresses 615 0$aEngineering mathematics 676 $a620.00151 702 $aIEEE Staff 712 02$aIEEE Computer Society. 712 12$aInternational Symposium on Voronoi Diagrams in Science and Engineering 801 0$bPQKB 906 $aPROCEEDING 912 $a9910138912803321 996 $a2009 6th International Symposium on Voronoi Diagrams$92525018 997 $aUNINA